These Prototype Double Heat Sinks were created by House Davion researchers. Unlike the Double Heat Sinks used by the Star League and after the War of 3039 these prototype units were smaller and could be mixed with standard heat sinks. As an experiment, they worked adequately, but their use of liquid heavy metals instead of the safer (if larger) radiators used in SLDF double heat sinks meant that they would only work for a few years before needing replacement. In addition the heavy metals were difficult to work with in the field and dangerous to the technical staff supporting them.[1]